Wireless Fidelity Multi-Link Device and Capacity Indication Method Adopted Thereby

Abstract

The present invention provides a Wi-Fi multi-link device (MLD) and a method for indicating capabilities adopted thereby, which can send the capabilities of the associated stations of different enabled link groups for MLD support to a peer MLD. Among them, the device provided by the present invention includes: a network interface circuit; and a control circuit configured to process an association process between a first Wi-Fi MLD and a second Wi-Fi MLD through the network interface circuit, wherein during the association process, the control circuit indicates a first capability allocation of a first group of associated stations of the first Wi-Fi MLD for a first group of enabled links on the first Wi-Fi MLD, and indicates a second capability allocation of a second group of associated stations of the first Wi-Fi MLD for a second group of enabled links on the first Wi-Fi MLD, the first group of associated stations being different from the second group of associated stations, and the first group of enabled links being different from the second group of enabled links.

Description

Technical Field

[0001] The present invention relates to wireless communication, and more particularly, to a Wireless Fidelity (Wi-Fi) Multi-Link Device (MLD) that indicates the capabilities of affiliated stations for different enabled link groups during association, and a related capability indication method. Background Art

[0002] In Wi-Fi Multi-Link Operation (MLO), there may be multiple links between two MLDs, and the two MLDs include an Access Point (AP) MLD and a non-AP MLD. These links can operate independently to increase overall throughput and / or improve connection stability. An AP MLD can be considered to include multiple APs affiliated to the same MLD. A non-AP MLD can be considered to include multiple non-AP Stations (STAs) affiliated to the same MLD. Multiple APs or multiple STAs in the same MLD can share some resources, such as memory, antennas, and / or radios. In addition, the MLD can manage the allocation of these resources. If a peer MLD (e.g., an AP MLD) is informed of the capabilities of the affiliated stations (e.g., multiple non-AP STAs) for the enabled links on an MLD (e.g., a non-AP MLD), the peer MLD (e.g., an AP MLD) can utilize these capabilities to maximize the channel utilization or throughput of the MLD (e.g., a non-AP MLD). Therefore, there is a need for an innovative capability indication design that can send the capabilities of the affiliated stations (e.g., multiple non-AP STAs) for different enabled link combinations supported by an MLD (e.g., a non-AP MLD) to a peer MLD (e.g., an AP MLD). Summary of the Invention

[0003] The present invention provides a Wireless Fidelity (Wi-Fi) Multi-Link Device (MLD) and a capability indication method adopted thereby, which can send the capabilities of the affiliated stations for different enabled link groups supported by the MLD to a peer MLD.

[0004] A Wireless Fidelity (Wi-Fi) Multi-Link Device (MLD) provided by the present invention includes: a network interface circuit; and a control circuit configured to process an association process between a first Wi-Fi MLD and a second Wi-Fi MLD through the network interface circuit, wherein during the association process, the control circuit indicates a first capability allocation for a first set of associated stations of the first Wi-Fi MLD for a first set of enabled links on the first Wi-Fi MLD, and indicates a second capability allocation for a second set of associated stations of the first Wi-Fi MLD for a second set of enabled links on the first Wi-Fi MLD, wherein the first set of associated stations is different from the second set of associated stations, and the first set of enabled links is different from the second set of enabled links.

[0005] A method for indicating capabilities adopted by a Wireless Fidelity (Wi-Fi) Multi-Link Device (MLD) provided by the present invention includes: indicating a first capability allocation for a first set of associated stations of the first Wi-Fi MLD for a first set of enabled links on the first Wi-Fi MLD, and indicating a second capability allocation for a second set of associated stations of the first Wi-Fi MLD for a second set of enabled links on the first Wi-Fi MLD during an association process between the first Wi-Fi MLD and the second Wi-Fi MLD; wherein the first set of associated stations is different from the second set of associated stations, and the first set of enabled links is different from the second set of enabled links.

[0006] As described above, by implementing the device and method of the embodiments of the present invention, the capabilities of the associated stations for different sets of enabled links supported by the MLD can be sent to the peer MLD. Description of the Drawings

[0007] Figure 1 is a diagram illustrating a Wi-Fi system according to an embodiment of the present invention.

[0008] Figure 2 is a diagram illustrating a case where one link is enabled between a non-AP MLD and an AP MLD according to an embodiment of the present invention.

[0009] Figure 3 is a diagram illustrating a case where two links are enabled between a non-AP MLD and an AP MLD according to an embodiment of the present invention.

[0010] Figure 4 is a diagram illustrating a case where three links are enabled between a non-AP MLD and an AP MLD according to an embodiment of the present invention.

[0011] Figure 5 is a diagram illustrating another case where one link is enabled between a non-AP MLD and an AP MLD according to an embodiment of the present invention.

[0012] Figure 6 FIG. is another situation diagram showing enabling two links between a non - AP MLD and an AP MLD according to an embodiment of the present invention.

[0013] Figure 7 FIG. is another situation diagram showing enabling three links between a non - AP MLD and an AP MLD according to an embodiment of the present invention. Detailed implementation mode

[0014] In the description of the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different nouns to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. The terms "comprising" and "including" mentioned throughout the specification and claims are open - ended terms and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. In addition, the term "coupled" herein includes any direct and indirect electrical connection means. Therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means. The following is the preferred way to implement the present invention, aiming to illustrate the spirit of the present invention rather than to limit the protection scope of the present invention. The protection scope of the present invention shall be determined with reference to what is defined in the claims.

[0015] The following description is the optimal embodiment expected by the present invention. These descriptions are used to elaborate on the general principles of the present invention and should not be used to limit the present invention. The protection scope of the present invention should be determined based on referring to the claims of the present invention.

[0016] Figure 1 FIG. is a diagram showing a Wi - Fi system according to an embodiment of the present invention. The Wi - Fi system 100 includes a plurality of wireless communication devices, for example, an access point (AP) multi - link device (MLD) 104 and a non - AP MLD 102. Among them, the AP MLD 104 can be considered to include a plurality of APs attached to the same MLD, and the non - AP MLD 102 can be considered to include a plurality of non - AP stations attached to the same MLD. More specifically, each of the AP MLD 104 and the non - AP MLD 102 can include a plurality of stations, where each station attached to the same AP MLD is an AP, and each station attached to the same non - AP MLD is a non - AP STA. For the sake of brevity, Figure 1Only two wireless communication devices are shown. In practice, the Wi-Fi system 100 is allowed to include more than two wireless communication devices in the same Basic Service Set (BSS), and these wireless communication devices include an AP MLD and more than one non-AP MLD. By way of example and not limitation, the non-AP MLD 102 and the AP MLD 104 may follow the IEEE 802.11be standard.

[0017] In this embodiment, the AP MLD 104 may have M links L 1 -L M and may communicate with the non-AP MLD 102 through N links L 1 -L N where M and N are positive integers, N is not less than 2, and M is not less than N. For the non-AP MLD 102, it may include a control circuit 112 and a network interface circuit 114, where the network interface circuit 114 may include a plurality of transceivers (labeled "TX / RX") 116_1 - 116_N respectively coupled to a plurality of antennas 118_1 - 118_N. Each of the transceivers 116_1 - 116_N may be part of a non-AP STA attached to the non-AP MLD 102. For the AP MLD 104, it may include a control circuit 122 and a network interface circuit 124, where the network interface circuit 124 may include a plurality of transceivers (labeled "TX / RX") 126_1 - 126_M respectively coupled to a plurality of antennas 128_1 - 128_M, where M ≥ N. Each of the transceivers 126_1 - 126_M may be part of an AP attached to the AP MLD 104. It should be noted that Figure 1 only the components relevant to the present invention are shown. In practice, the non-AP MLD 102 may include additional components to implement specified functions, and the AP MLD 104 may also include additional components to implement specified functions. The transceivers 116_1 - 116_N of the non-AP MLD 102 may communicate with the transceivers 126_1 - 126_M of the AP MLD 104 through the links L 1 -L N (N ≥ 1). For example, the link L 1 -L NThey may be channels operating in different radio frequency (RF) bands, including the 2.4 GHz band, the 5 GHz band, and / or the 6 GHz band. The control circuit 112 of the non-AP MLD 102 and the control circuit 122 of the AP MLD 104 are arranged to control the wireless communication between the non-AP MLD 102 and the AP MLD 104. For example, the control circuit 112 controls the transmit (TX) circuit on the STA side to handle the uplink (UL) traffic between the AP and the non-AP STA, and controls the receive (RX) circuit on the STA side to handle the downlink (DL) traffic between the AP and the non-AP STA. Also, the control circuit 122 controls the RX circuit on the AP side to handle the UL traffic between the AP and the non-AP STA, and controls the TX circuit on the AP side to handle the DL traffic between the AP and the non-AP STA.

[0018] Regarding the proposed capability indication scheme, the control circuit 112 of the non-AP MLD 102 is configured to handle the association process between the non-AP MLD 102 and the AP MLD 104 through the network interface circuit 114. During the association process, the control circuit 112 indicates a first capability allocation for a first set of associated stations (i.e., multiple non-AP STAs) corresponding to a first set of enabled links on the non-AP MLD 102, and further indicates a second capability allocation for a second set of associated stations (i.e., multiple non-AP STAs) corresponding to a second set of enabled links on the non-AP MLD 102. It should be noted that a set of associated stations may include a single non-AP STA or multiple non-AP STAs, a set of enabled links may include a single enabled link or multiple enabled links, the first set of associated stations is different from the second set of associated stations, and the first set of enabled links is different from the second set of enabled links. For example, the first set of associated stations and the second set of associated stations may include different numbers of stations (i.e., non-AP STAs) in the non-AP MLD 102, and the first set of enabled links and the second set of enabled links may include different numbers of enabled links. Thus, during the association process between the non-AP MLD 102 and the AP MLD 104, the capabilities of different sets of non-AP STAs corresponding to different sets of enabled links supported by the non-AP MLD 102 are notified to the AP MLD 104. Since the number of enabled links on the non-AP MLD 102 can change dynamically, the AP MLD 104 can utilize the capabilities of different sets of non-AP STAs (all announced by the non-AP MLD 102 during the association process) to maximize the channel utilization or throughput of the non-AP MLD 102. Further details of the proposed capability indication scheme are described below with reference to the accompanying drawings.

[0019] When communicating with the AP MLD 104 via an enabled link, multiple non-AP STAs attached to the non-AP MLD 102 can share the hardware resources of the non-AP MLD 102. Taking the memory as the shared resource as an example, there is a maximum memory bound to support frame exchange. However, due to cost reasons, it is not always possible to allocate a memory size that matches the maximum memory bound for each link. Therefore, in some embodiments of the present invention, the capability allocation for non-AP STAs of a certain group of enabled links indicated by the association process (e.g., the capability allocation for non-AP STAs of a specific number of enabled links) includes memory resource allocation. For example, the memory resource allocation may include the maximum Media Access Control (MAC) Protocol Data Unit (MPDU) length for each non-AP STA. The maximum MPDU length in the Very High Throughput (VHT) / High Efficiency (HE) capability element defines 3 possible values. Specifically, for 3895 (4K) octets, the value of the 2-bit maximum MPDU length subfield is set to 0, for 7991 (8K) octets, the value of the 2-bit maximum MPDU length subfield is set to 1, and for 11454 (11K) octets, the value of the 2-bit maximum MPDU length subfield is set to 2.

[0020] In the first scenario, assume that the non-AP MLD 102 is a non-AP MLD with 3-link capability, which includes 24K memory 202 and three stations of non-AP STAs (labeled STA1, STA2, and STA3), and the non-AP MLD 102 can indicate the maximum MPDU length capabilities of one or more non-AP STAs as:

[0021] 1 enabled link, 11K

[0022] 2 enabled links, 11K for each link

[0023] 3 enabled links, 8K for each link.

[0024] Figure 2FIG. is a diagram illustrating a case where one link is enabled between a non-AP MLD 102 (e.g., a 3-link capable non-AP MLD including a 24K memory 202) and an AP MLD 104 according to an embodiment of the present invention. When the number of links enabled on the non-AP MLD 102 is dynamically changed to 1, the AP MLD 104 can refer to the information obtained from the capability signaling of the non-AP MLD 102 to understand that the maximum MPDU length capability of one non-AP station (e.g., STA1) using a single enabled link (e.g., L 1 ) is 11454 (11K) octets, and can appropriately allocate resources for processing communications through this single enabled link. For example, based on the capabilities notified by the non-AP MLD 102, the AP of the AP MLD 104 can send a packet to the non-AP station STA1 through the enabled link L1, where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets.

[0025] Figure 3 FIG. is a diagram illustrating a case where two links are enabled between a non-AP MLD 102 (e.g., a 3-link capable non-AP MLD including a 24K memory 202) and an AP MLD 104 according to an embodiment of the present invention. When the number of links enabled on the non-AP MLD 102 is dynamically changed to 2, the AP MLD 104 can refer to the information obtained from the capability signaling of the non-AP MLD 102 to understand that the maximum MPDU length capability of each of two non-AP stations (e.g., STA1 and STA2) using two enabled links (e.g., L 1 and L 2 ) is 11454 (11K) octets, and can appropriately allocate resources for processing communications through these two enabled links. For example, based on the capabilities notified by the non-AP MLD 102, one AP of the AP MLD 104 can send a packet to the non-AP station STA1 through the enabled link L 1 , where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets, and another AP of the AP MLD 104 can send a packet to the non-AP station STA2 through the enabled link L 2 , where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets.

[0026] Figure 4FIG. 0 is a diagram illustrating a case where three links are enabled between a non-AP MLD 102 (e.g., a 3-link-capable non-AP MLD including a 24K memory 202) and an AP MLD 104. When the number of links enabled on the non-AP MLD 102 is dynamically changed to 3, the AP MLD 104 can refer to the information obtained from the capability signaling of the non-AP MLD 102 to understand the maximum MPDU length capabilities of each of the three non-AP stations (e.g., STA1-STA3) for using the three enabled links (e.g., L 1 , L 2 and L 3 ) are 7991 (8K) octets, and resources can be appropriately allocated to handle communications through the three enabled links. For example, based on the capabilities notified by the non-AP MLD 102, an AP of the AP MLD 104 can send a packet to the non-AP station STA1 through the enabled link L 1 , where the packet has an MPDU length constrained by the maximum MPDU length = 7991 (8K) octets. Another AP of the AP MLD 104 can send a packet to the non-AP station STA2 through the enabled link L 2 , where the packet has an MPDU length constrained by the maximum MPDU length = 7991 (8K) octets. Yet another AP of the AP MLD 104 can send a packet to the non-AP station STA3 through the enabled link L 3 , where the packet has an MPDU length constrained by the maximum MPDU length = 7991 (8K) octets.

[0027] Regarding Figure 3 - Figure 4 the case of having multiple enabled links as shown, multiple non-AP STAs share the same capabilities (e.g., maximum MPDU length = 11454 (11K) octets or maximum MPDU length = 7991 (8K) octets). In other words, during the association process, the capability allocation for each non-AP STA in the capability allocation for multiple non-AP STAs of an enabled link group including multiple enabled links indicated by the non-AP MLD 102 (specifically, the control circuit 112 of the non-AP MLD 102) is the same. However, this is for illustrative purposes only and does not imply a limitation of the present invention. In an alternative design, during the association process, the capability allocation for at least some of the non-AP STAs in the capability allocation for multiple non-AP STAs of an enabled link group including multiple enabled links indicated by the non-AP MLD 102 (specifically, the control circuit 112 of the non-AP MLD 102) is different.

[0028] In the second case, assume that the non-AP MLD 102 is a non-AP MLD with 3-link capabilities, which includes a 27K memory 502 and three stations (labeled STA1, STA2, and STA3) that are non-AP STAs, and the non-AP MLD 102 can indicate the maximum MPDU length capabilities of one or more non-AP STAs as:

[0029] 1 enabled link, 11K

[0030] 2 enabled links, 11K each

[0031] 3 enabled links, 8K, 8K, and 11K for the 2.4GHz, 5GHz, and 6GHz links respectively.

[0032] Figure 5 FIG. is a diagram illustrating another case of enabling one link between a non-AP MLD 102 (e.g., a 3-link capable non-AP MLD including a 27K memory 502) and an AP MLD 104. When the number of enabled links on the non-AP MLD 102 is dynamically changed to 1, the AP MLD 104 can refer to the information obtained from the capability signaling of the non-AP MLD 102 to know that the maximum MPDU length capability of one non-AP station (e.g., STA1) using a single enabled link (e.g., L 1 ) is 11454 (11K) octets, and can appropriately allocate resources for processing communications through this single enabled link. For example, based on the capabilities notified by the non-AP MLD 102, the AP of the AP MLD 104 can send a packet to the non-AP station STA1 through this enabled link L 1 , where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets.

[0033] Figure 6 FIG. is a diagram illustrating another case of enabling two links between a non-AP MLD 102 (e.g., a 3-link capable non-AP MLD including a 27K memory 502) and an AP MLD 104. When the number of enabled links on the non-AP MLD 102 is dynamically changed to 2, the AP MLD 104 can refer to the information obtained from the capability signaling of the non-AP MLD 102 to know that two enabled links (e.g., L 1 and L 2) The maximum MPDU length capability of each of the two non - AP stations (e.g., STA1 and STA2) is 11454 (11K) octets, and resources can be appropriately allocated to handle communications through the two enabled links. For example, based on the capabilities notified by the non - AP MLD 102, one AP of the AP MLD 104 can send a packet to the non - AP station STA1 through the enabled link L 1 where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets. Another AP of the AP MLD 104 can send a packet to the non - AP station STA2 through the enabled link L 2 where the packet has an MPDU length constrained by the maximum MPDU length = 11454 (11K) octets.

[0034] Figure 7 FIG. is a diagram illustrating another case of enabling three links between a non - AP MLD 102 (e.g., a 3 - link - capable non - AP MLD including a 27K memory 502) and an AP MLD 104. When the number of enabled links on the non - AP MLD102 is dynamically changed to 3, the AP MLD 104 can refer to the information obtained from the capability signaling of the non - AP MLD 102 to understand the maximum MPDU length capabilities of three non - AP stations (e.g., STA1 - STA3) using the three enabled links (e.g., L 1 (L 1 @2.4GHz), L 2 (L 2 @5GHz), and L 3 (L 3 @6GHz)) are 7991 (8K) octets, 7991 (8K) octets, and 11454 (11K) octets respectively, and resources can be appropriately allocated to handle communications through the three enabled links. For example, based on the capabilities notified by the non - AP MLD 102, one AP of the AP MLD104 can send a packet to the non - AP station STA1 through the enabled link L 1 where the packet has an MPDU length constrained by the maximum MPDU length = 7991 (8K) octets. Another AP of the AP MLD 104 can send a packet to the non - AP station STA2 through the enabled link L 2 where the packet has an MPDU length constrained by the maximum MPDU length = 7991 (8K) octets. Another AP of the AP MLD 104 can send a packet to the non - AP station STA3 through the enabled link L 3Transmit a packet to non - AP station STA3, where the packet has an MPDU length constrained by a maximum MPDU length = 11454 (11K) octets.

[0035] In the above example, the memory resource allocation indicated by non - AP MLD 102 during the association process may include the maximum MPDU length for each non - AP STA. However, this is for illustrative purposes only and does not imply a limitation on the present invention.

[0036] In some embodiments of the present invention, the memory resource allocation indicated by non - AP MLD 102 during the association process may include the maximum aggregated MPDU (A - MPDU) length for each non - AP STA. The maximum A - MPDU length in the high - throughput (HT) capability element defines 2 possible values. Specifically, for 3839 octets, the value of the 1 - bit maximum A - MPDU length sub - field is set to 0, and for 7935 octets, the value of the 1 - bit maximum A - MPDU length sub - field is set to 1.

[0037] In some embodiments of the present invention, the memory resource allocation indicated by non - AP MLD 102 during the association process may include the maximum A - MPDU length exponent for each non - AP STA. The maximum A - MPDU length exponent in the VHT / HE 6G capability element defines the maximum length of the A - MPDU as 2 (13+最大A-MPDU長度指數) - 1 octets.

[0038] As described above, during the association process between non - AP MLD 102 and AP MLD 104, the control circuit 112 indicates the capability allocation for different non - AP STA groups for different enabled link groups (or different numbers of enabled links) supported by non - AP MLD 102. During the association process between non - AP MLD 102 and AP MLD 104, non - AP MLD 102 (specifically, the control circuit 112 of non - AP MLD 102) may announce other capabilities or operating modes in addition to the memory resource allocation.

[0039] For example, the capability allocation for a group of non - AP STAs for a group of enabled links indicated during the association process (e.g., the capability allocation for multiple non - AP STAs for a specific number of enabled links) may include: the number of spatial streams (NSS) for each non - AP STA in the RX mode. For the case of enabling multiple links, the non - AP STAs using these enabled links may share the same RX NSS capability or may have different RX NSS capabilities, depending on the actual design considerations.

[0040] For example, the capability allocation for a set of non-AP STAs for a set of enabled links indicated during the association process (e.g., the capability allocation for multiple non-AP STAs for a specific number of enabled links) may include: the number of spatial streams (NSS) of each non-AP STA in the TX mode. For the case where multiple links are enabled, the non-AP STAs using these enabled links may share the same TX NSS capability or may have different TX NSS capabilities, depending on the actual design considerations.

[0041] Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to that defined by the claims.

Claims

1. A method for indicating capabilities adopted by a Wi-Fi multi-link device, characterized in that, it includes: indicating a first capability allocation of a first set of associated stations in the first Wi-Fi multi-link device for a first set of enabled links on the first Wi-Fi multi-link device, and indicating a second capability allocation of a second set of associated stations in the first Wi-Fi multi-link device for a second set of enabled links on the first Wi-Fi multi-link device during the association process between the first Wi-Fi multi-link device and the second Wi-Fi multi-link device; wherein the first set of associated stations is different from the second set of associated stations, and the number of links included in the first set of enabled links is different from the number of links included in the second set of enabled links.

2. The method for indicating capabilities according to claim 1, characterized in that, the first set of enabled links includes a single enabled link.

3. The method for indicating capabilities according to claim 1, characterized in that, the first set of enabled links includes multiple enabled links.

4. The method for indicating capabilities according to claim 3, characterized in that, the first capability allocation has the same capability indication for each associated station included in the first set of associated stations.

5. The method for indicating capabilities according to claim 3, characterized in that, the first capability allocation has different capability indications for at least a part of the associated stations included in the first set of associated stations.

6. The method for indicating capabilities according to claim 1, characterized in that, the first capability allocation includes memory resource allocation.

7. The method for indicating capabilities according to claim 6, characterized in that, the memory resource allocation includes the maximum Media Access Control protocol data unit length of each associated station, the maximum aggregated Media Access Control protocol data unit length of each associated station, or the maximum aggregated Media Access Control protocol data unit length exponent of each associated station.

8. The method for indicating capabilities according to claim 1, characterized in that, the first capability allocation includes the number of spatial streams of each associated station in the receive mode.

9. The method for indicating capabilities according to claim 1, characterized in that, the first capability allocation includes the number of spatial streams of each associated station in the transmit mode.

10. A Wi-Fi multi-link device, characterized in that, it includes: a network interface circuit; and a control circuit configured to process the association process between the first Wi-Fi multi-link device and the second Wi-Fi multi-link device through the network interface circuit, wherein during the association process, the control circuit indicates a first capability allocation of a first set of associated stations in the first Wi-Fi multi-link device for a first set of enabled links on the first Wi-Fi multi-link device, and indicates a second capability allocation of a second set of associated stations in the first Wi-Fi multi-link device for a second set of enabled links on the first Wi-Fi multi-link device, wherein the first set of associated stations is different from the second set of associated stations, and the number of links included in the first set of enabled links is different from the number of links included in the second set of enabled links.

11. The Wi-Fi multi-link device according to claim 10, characterized in that, The first set of enabled links includes a single enabled link.

12. The Wi-Fi multi-link device according to claim 10, wherein, the first set of enabled links includes a plurality of enabled links.

13. The Wi-Fi multi-link device according to claim 12, wherein, the first capability allocation has the same capability indication for each of the associated stations included in the first set of associated stations.

14. The Wi-Fi multi-link device according to claim 12, wherein, the first capability allocation has different capability indications for at least a portion of the associated stations included in the first set of associated stations.

15. The Wi-Fi multi-link device according to claim 10, wherein, the first capability allocation includes a memory resource allocation.

16. The Wi-Fi multi-link device according to claim 15, wherein, the memory resource allocation includes the maximum Media Access Control protocol data unit length for each associated station, the maximum aggregated Media Access Control protocol data unit length for each associated station, or the maximum aggregated Media Access Control protocol data unit length exponent for each associated station.

17. The Wi-Fi multi-link device according to claim 10, wherein, the first capability allocation includes the number of spatial streams for each associated station in the receive mode.

18. The Wi-Fi multi-link device according to claim 10, wherein, the first capability allocation includes the number of spatial streams for each associated station in the transmit mode.

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